You got that cheap Garry!
I hear that people in the US do a higher milage ,(what's your average there? ,in the UK its 10-12,000/yr) but really you guys do have cheap petrol!.
Taking a few factors in 3.8lts= 1US gallon ,$1.79=£1 ,our petrol costs $5.43/US gal! :Q
Min Oct in UK is 95 (std UL ) super unleaded is either 97 or 98 (can't remember) & is more expensive
And yeah higher Octane petrol gives better fuel economy & power with an engine that
can 'retune' itself for the higher Octane otherwise it wont make a jot of difference.
Currency conversion
lobadobadingdong
Where did you hear Octane rating effects injection systems? ,it shouldn't make any difference to that AFAIK
and the steel sleeved american engines also last a lot longer than the jap/euro aluminum engines
AFAIK ,most Euro engines have Alu blocks but with steel liners ,I believe BMW are 1 exception ,& they seem to last a decent milage
As far as London's air quality goes, thats more than likely down to so many old taxis,buses & coaches running around ,old Diesel engines pump out a lot of soot.They didn't really clean up that much until coaches made in the mid to late 90's so there's still plenty old ones running around.Of course there are other factors too though.
Also I would dispute that London has the worlds worst air quality for a city ,I know for a fact that Athens is worse!, not to mention cities from far poorer countries.I think you ought to recheck your info their
Btw do your trucks (I dont mean picks ups) ,coaches & buses have Diesel engines these days?
My car's a 12yr old Ford Sierra ,2.0i 8v DOHC which does about 33 MPG ,mostly urban driving with some 'inter urban' driving (country roads/motorways).Last I checked I do 13,000miles/yr.... oh yeah & its at 133,000 miles & counting (my last Sierra hit 140,000 miles on original engine before I crashed it! )